You can move the timeline in 3 ways:
drag it with the mouse
use the back/forward buttons; and
click the overview bar below
To show the data, click 'Config' and select the data set.
The current position in the timline is shown by the box in the overview bar at the bottom of this interaction. The timeline itself also has a faint triangular background that increases in height. Of course, there are the x axis labels that show the year on the timeline.
The overview bar, at the bottom of the interaction, has vertical lines where items appear on the timeline. The higher the vertical bar the more items there are in that period (year).
To view the contents of an item click its icon on the timeline and a box will open. There are fields for the year, title, description and tags. If there is a link to more information a 'More' button will appear below the fields. You can drag the box around by dragging the 'Drag Bar'.
By default all items are shown. You can filter the view to only show items with a specfic tag/topic. In the top right is 'Change Filter: ALL'. Click the Change button and select the tag/topic you want to view.
Click the 'Config' spanner to change the configuration aspects. Data sets (including Help) are selected here, e.g. 'NHS data set'. To the left of the 'Config' button it shows the current data set (or Help).
Designed and developed by Nisha Patel and Adam Bostock. The e-learning 'A-Team', October 2011.